Our engineering and induction heating experts have compiled a list of frequently asked questions. This list will be updated often. Ask your own questions. We are happy to help.
We’ve organized the list down by subject. Choose a topic or scan our complete list of questions.
- Application Related
- Company Information
- Glossary: Terms & Definitions
- Products & Services
- Quotes & Orders
- Events & Trade Shows
Application Related
Q: How can I use an induction generator 200 feet in the air?
A: eldec has developed a generator that can be hoisted up or down into position. Read more about eldec’s hoistable solution.
Q: How can shrink fitting simplify electric motor assembly?
A: A Technical Bulletin released by eldec discusses the use of induction heating for shrink fitting components of electrical motor assemblies. Since induction heat can uniformly and gently heat the outer housing of the motor without overheating any one area, shrink-fit connections are simple to assemble and disassemble. Read more.
Q: Is it possible to prevent part fatique fractures using induction annealing?
A: Yes, it is possible. You can read more about the process in our technical bulletin Prevent Part Fatigue Fractures Using Induction Annealing.
Q: I’ve been told that switching to induction brazing is too expensive for my shop. How do I convince my boss to reconsider?
A: We hear this argument a lot. While induction brazing equipment is typically an expensive initial investment, it pays off in the long run – especially for high volume projects. In fact, there are seven reasons why investing in induction equipment is worthwhile. We’ve also gathered and debunked four additional common myths about induction brazing.
Q: Is there a way to use induction heating to quickly strip the insulated coating off of copper transformer wires?
A: Yes, you can use induction heating to strip copper transformer wires. Watch our video and see how easy it is to strip wire.
Q: Do you have videos showing induction heating in action?
A: Yes, we have a list of induction heating videos here.
Q: Which metals can be heated using induction?
A: Induction heating is a fast and highly efficient means of heating various types of electrically conductive metals.
Q: How do I reduce the risk of back and repetitive motion injuries for my workers while they are brazing our parts?
A: eldec now offers a boom arm as an option on its new, mobile power supply, the MiniMICO. The flexible arm supports and balances the weight of the coax transformer, making the induction brazing process virtually effortless. See the video of the MiniMICO in action.
Q: I’ve considered using induction brazing, but getting to my job sites often involves traveling down gravel roads or rough and uneven dirt trails. How do I protect my power supply?
A: eldec designed a vibration-dampening, transport cage specifically for field service teams working in rugged environments. Learn more about how eldec’s transport cage makes it possible to use induction power supplies in challenging working conditions.
Company Information:
Q: What is the difference between Eldec Corp. and eldec LLC?
A: Both companies share customers in the aerospace industry and are frequently confused for one another. Read more about Eldec Corp. and eldec LLC.
Glossary: Terms & Definitions
Q: What do you mean by _(insert term or phrase to be defined here)_?
A: Please review our Glossary for commonly used words and phrases from the induction heating industry. The link will take you to our international website, eldec.net.
Q: How does induction heating work?
A: During induction heating eddy currents are induced in an electrically conductive metallic workpiece by an alternating electromagnetic field. These are converted into heat by magnetic loss. Or, simply put, the metal heats up due to the current flow produced in the workpiece. This enables induction heating to introduce heat directly into the workpiece rather than through connectivity from an external source such as heating with a flame or in a furnace. This process thus achieves a very high degree of efficiency. Additionally, heating can also be accomplished passing through non-conductive materials. The surrounding area is only heated indirectly. Read more about induction heating.
Q: What is the difference between induction brazing and welding?
A: Brazing is a process in which a filler metal is melted and flowed into a joint to join two or more metal items at a high temperature. Brazing differs from welding in that brazing does not involve melting of the pieces being connected. Brazing differs from soldering in that soldering is performed at a lower temperature. Explanations for additional induction heating-related terms can be found in eldec’s Glossary.
Q: Which metals can be heated using induction?
A: Electrically conductive metals can be used. See our list.
Q: What is the difference between dual frequency and simultaneous dual frequency power supplies?
A: Both types of generators allow operators to use more than one frequency range with a single system. Operators can switch between to ranges of frequencies — medium and high, for example — on a dual system, but they cannot use both ranges of frequencies at the same time. Simultaneous dual frequency systems allow use of both ranges at the same time. This ability is especially helpful when hardening gears. Read more about all of the type of induction power supplies, their frequency ranges and typical uses.
Q: Can you explain the different types of induction coils and how they are used?
A: An inductor’s shape and construction style are determined predominantly by the geometry of the workpiece section to be heated, and the possibilities are infinite. See eldec’s guide to basic types of inductors and possible uses.
Products & Services
Q: My induction generator quit working and is in for repair. Is there any way to prevent this from happening again?
A: Yes, our Services Manager shared simple steps to prevent common induction generator problems.
Q: Do you offer installation, commissioning and training on your equipment?
A: Yes, our service department offers installation and commissioning help, as well as training at eldec’s facility in Auburn Hills, MI or at your facility upon request. Read more about eldec’s installation, commissioning and training options.
Q: Do you offer customized equipment?
A: Yes, we would be happy to sit with you and discuss your project’s specific requirements and help you with a custom induction heating system designed to meet your specific need. Contact eldec LLC to learn more.
Q: What types of induction heating generators does eldec manufacture?
A: eldec manufactures several categories of induction heating power supplies for a wide variety of processes and applications, including induction brazing, shrink fitting, annealing, pre-heating for welding, adhesive curing and more. While it is best to consult with one of our induction heating experts in order to customize a system for your specific process and part, here is a list of our main categories and the potential uses for each type to use as a guide.
Q: Where are eldec’s induction power supplies made?
A: eldec LLC custom manufactures and services induction power supplies and heating coils for the North American market in Auburn Hills, Michigan.
Read More >>
Q: Does eldec offer process development?
A: Yes, we do. We work with you to develop a customized solution through a mutually beneficial partnership. Processes are developed using your parts to ensure results meet or exceed your process expectations. You will benefit from our years of experience with induction heating in various applications ranging from brazing and shrink fitting to curing and annealing. Read More >>
Q: Do you make induction coils in-house?
A: Yes, we have very talented coil makers that will carefully build your induction coils per the design requirements. We also have a talented and experienced engineering staff that will design your coil in SolidWorks. Learn more about eldec’s custom manufactured coils.
Q: My shop has gone through a lot of coils last year. Do you have any suggestions to help make them last longer?
A: Yes, a little TLC can go a long way in helping extend the life of your coils. Our Service Manager shared six tips to help avoid induction coil problems.
Q: Can you repair induction heating coils and what will it cost?
A: Yes, if you would send us your coils we would be more than happy to do a physical evaluation and provide you with a quotation for the repair work. Read more about our services and expertise.
Q: Do you offer rental equipment?
A: Yes, eldec often has stock induction heating power supplies available for rental or immediate purchase suitable for a variety of applications. See our most recent stock list.
Q: Can I rent a coil from you?
A: Unfortunately, no you cannot. All of our induction coils are customer made for a specific application being performed on a specific size part. We would be happy to review your application and part geometry to provide you with a quotation for the purchase of an induction coil. Request a consultation.
Q: My induction heating system isn’t working properly. What are my service options?
A: Our service department offers on-site service where we will send one of our technicians to your facility to repair eldec generators. We would prefer, however, that you send your Generator to our facility in Auburn Hills, MI for our technicians to examine the machine and perform any necessary repairs. Read More >>
Q: Does eldec stock spare parts and components for its induction heating generators?
A:Yes, we do. eldec keeps its shelves stocked with replacement parts and components for its line of generators and induction heating systems. Many parts can be shipped within three to four business days or less to locations in the United States. Locations in Canada and Mexico require additional shipping time. Read More >>
Q: I lost my induction heating operational and maintenance manual. Can I get a replacement?
A: Yes, replacement manuals are available. Contact us.
Q: I’m new to my company and it’s my responsibility to maintain equipment in our shop. Do you have recommendations for preventative maintenance for induction heating generators?
A: Yes, we do. You can download a copy of our recommended maintenance schedule and detailed instructions here.
Q: How do I know whether to repair or replace my induction coil?
A: Repairing rather than replacing induction coils can save you money, but how do you know when it’s time to replace them? eldec’s skilled technicians can help you decide. Contact us to schedule an evaluation.
Q: Do you have instructions for installing induction heating coils?
A: Yes, we do. You can read more about the steps and download a printer-friendly copy of our coil installation tips here.
Q: What is the best way to disconnect the coaxial cable from my eldec generator?
A: Whether you’re the boss or the new guy or gal on the line be sure to read the maintenance and service manuals before attempting an in-house repair. If you are unsure of the proper method to disconnect the coaxial cable from the induction generator, please consult with eldec’s trained service personnel, and they will walk you through the process. If the level of repair needed exceeds your staff’s capabilities, eldec offers flexible service options and quick turn around.
Q: How do I safely change a coaxial cable?
A: See our step-by-step procedures for safe removal and installation of coaxial cables for induction power supplies.
Q: Do you offer operator training for induction heating systems?
A: Yes. Getting a new employee up to speed can be a challenge. That’s why eldec LLC offers training for induction heating system operation for individuals and small groups.
Q: Although I read and speak English fairly well, it’s not my first language. Do you offer technical details in Français?
A: Yes, we do. In fact, we offer technical information in eight languages. Visit our international website, eldec.net to learn more.
Quotes & Orders
Q: What information do you need from me in order to provide a quote for a heating system?
A: Five key pieces of information are needed. Read 5 Key Induction Heating System Quote Specs.
Q: How do I place a repeat order for induction coils?
A: Placing a repeat order for induction coils with eldec LLC is easy. Learn more about the ways to repeat your order and choose the method that works best for you and your schedule:
Q: What is the lead time for an induction coil?
A: Lead times can vary and depend on how busy we are. eldec has 3 recommendations to keep your operation running smoothly.
Events & Trade Shows
Q: Are you planning to exhibit at any upcoming tradeshows in North America?
A: Ordinarily, we would. COVID-19 has forced the cancellations of trade exhibits all over the world. Many of the trade show organizers have moved to hosting virtual shows, offering a variety of information online. We will post the most up-to-date information on our trade show update page. In the meantime, we are available for consultations via phone, video conference, email and in person with some restrictions. Give us a call or request a consultation and we’ll call you.
